EP1154620B1 - Terminal adapter, computer-readable recording medium, and terminal adapter management system - Google Patents

Terminal adapter, computer-readable recording medium, and terminal adapter management system Download PDF

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Publication number
EP1154620B1
EP1154620B1 EP00124320A EP00124320A EP1154620B1 EP 1154620 B1 EP1154620 B1 EP 1154620B1 EP 00124320 A EP00124320 A EP 00124320A EP 00124320 A EP00124320 A EP 00124320A EP 1154620 B1 EP1154620 B1 EP 1154620B1
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EP
European Patent Office
Prior art keywords
line
telephone number
called party
terminal adapter
connection information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00124320A
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German (de)
English (en)
French (fr)
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EP1154620A1 (en
Inventor
Kentoku Kinoshita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sophia International Co Ltd
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Sophia International Co Ltd
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Publication of EP1154620A1 publication Critical patent/EP1154620A1/en
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Publication of EP1154620B1 publication Critical patent/EP1154620B1/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/64—Distributing or queueing
    • H04Q3/66—Traffic distributors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H04M1/27485—Appending a prefix to or inserting a pause into a dialling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H04M1/2753—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips providing data content
    • H04M1/2757—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips providing data content by data transmission, e.g. downloading
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13091—CLI, identification of calling line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13106—Microprocessor, CPU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13109—Initializing, personal profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13138—Least cost routing, LCR
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13141—Hunting for free outlet, circuit or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13202—Network termination [NT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1322—PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1325—Priority service

Definitions

  • the present invention relates to a terminal adapter, having a direct-dialing function, an auto-dialing function and a routing function, for connecting a user terminal device to a telecommunication network, and relates to a computer-readable recording medium storing therein programs which permit a computer, loaded with the programs, to serve as a communication control section of a terminal adapter of the aforementioned type.
  • the present invention also relates to a terminal adapter management system in which the initial setting and renewal of line-connection information and a toll table, stored in each individual terminal adapter and used to achieve the aforementioned functions, can be performed by a service center through a telecommunication network.
  • NCC networks In addition to public telecommunication networks provided by a primary telecommunication enterprise (hereinafter referred to as “common carrier” or “CC”) such as Nippon Telegraph and Telephone Co., a variety of telecommunication networks (hereinafter referred to as “NCC networks”) accessible by various users have been provided by other telecommunication enterprises (hereinafter referred to as “new common carriers” or “NCCs").
  • NCC networks telecommunication networks accessible by various users
  • NCCs new common carriers
  • NCC identification number an enterprise identification number [00XX]
  • the user's telephone delivers the NCC identification number to the public telecommunication network, so that it may be connected via the public telecommunication network to a relevant NCC exchange. Then, the called party's telephone number is delivered to start to establish a line connection between the user' s terminal device and a called party's terminal device through the public and NCC communication networks.
  • the terminal adapter delivers an NCC identification number and a called party' s telephone number manually input through the user terminal device for utilization of an NCC network.
  • DSC Digital Service Unit
  • an NCC identification number is generally required to be input for utilization of an NCC network.
  • some of terminal adapters have an auto-dialing function (supplementary-information delivering function) of automatically delivering an NCC identification number, where required, when a called party's telephone number is manually input.
  • Such a terminal adapter is for example disclosed in document US-A-5-329 580 (YOSHINO K) 12 July 1994 (1994-07-12).
  • a terminal adapter of this type is only adapted for use with a single NCC.
  • terminal devices and a switching device To selectively utilize an arbitrary one of NCC telecommunication networks with auto-dialing, terminal devices and a switching device, by way of example, must be installed between the user terminal device and the subscriber line and a required one of terminal adapters must be selected by operating the switching device, to thereby connect the user terminal device to the subscriber line through the selected terminal device and the switching device.
  • a switching device To selectively utilize an arbitrary one of NCC telecommunication networks with auto-dialing, terminal devices and a switching device, by way of example, must be installed between the user terminal device and the subscriber line and a required one of terminal adapters must be selected by operating the switching device, to thereby connect the user terminal device to the subscriber line through the selected terminal device and the switching device.
  • each individual user cannot utilize an arbitrary one NCC network with ease.
  • So-called priority connection services (which are also referred to as carrier selection services or dialing parity services) are scheduled to be provided for practical use in Japan, in which services an NCC identification number, registered in a CC exchange upon request of each individual user, is automatically delivered from the CC exchange when the user makes a call.
  • the priority connection services only a single NCC identification number can be registered in a CC exchange. If the user wishes to utilize an NCC other than the registered NCC, he or she must input the identification number of the unregistered NCC.
  • the priority-connection services do not permit each individual user to selectively utilize an arbitrary one of NCCs with ease.
  • a direct-dial telephone having a direct-dialing function (fixed-connection function or called-party designating function) of calling up the same called party's telephone for every call is known, and an adapter having an LCR (Least-Cost Routing) function or an ACR (Automatic Carrier Routing) function of selecting the lowest-cost telecommunication network or an arbitrary telecommunication network is known. It is convenient for each individual user if he or she can easily utilize these functions.
  • LCR Local-Cost Routing
  • ACR Automatic Carrier Routing
  • An object of the present invention is to provide a terminal adapter having a direct-dialing function, an auto-dialing function and a routing function, thereby permitting each individual user to easily utilize his or her terminal device in various forms.
  • Another object of the present invention is to provide a computer-readable recording medium stored with programs for permitting a computer to serve as a communication control section of a terminal adapter having a direct-dialing function, an auto-dialing function and a routing function.
  • a further object of the present invention is to provide a terminal adapter management system in which the initial setting and renewal of line-connection information and a toll table, which are stored in a memory device of a terminal adapter to achieve a direct-dialing function, an auto-dialing function and a routing function, can be performed by a service center through a telecommunication network, to thereby offer each individual user an optimum telecommunication circumstance adapted to his or her utilization form of telecommunication which varies between users and which changes with changes in his or her preference, family structure, or other circumstances.
  • a terminal adapter which comprises a communication control section for selectively performing an arbitrary one of a first function of reading out a called party's telephone number stored in advance as first line-connection information in a memory device of the terminal adapter and of delivering the same to a subscriber line when a user terminal device connected to the terminal adapter is taken off-hook, a second function of reading out second line-connection information from the memory device and of delivering the same prior to delivery of a called party's telephone number when the called party's telephone number is input through the user terminal device, and a third function of reading out, from the memory device, third line-connection information used to establish a line connection with a particular telecommunication network provided by a particular common carrier with which a user made a service contract and of delivering the same prior to delivery of a called party's telephone number when the called party's telephone number is input through the user terminal device.
  • the terminal adapter of the present invention if the terminal adapter is set such that the communication control section performs the first function, the terminal adapter can call up the same called party's telephone number every time the user terminal device such as a telephone is taken off-hook. That is, a direct-dialing (called-party designating) function is achieved.
  • supplementary information such as a caller ID or a password, which is to be delivered for line-connection with a certain telecommunication network
  • the second line-connection information such as a caller ID or a password
  • the NCC identification number is automatically delivered from the terminal adapter when the called party's telephone number manually input is intended to utilize an NCC telecommunication network. That is, an auto-dialing function is achieved.
  • the terminal adapter is provided with a toll table and a least-cost-route selecting function for selecting an NCC telecommunication network, which is useable with the lowest cost, in accordance with time zone and telecommunication district of a called party, the second line-connection information, e.g., an NCC identification number, is determined by the least-cost-route selecting function, whereby an NCC identification number associated with an NCC telecommunication network useable with the lowest cost can be automatically delivered.
  • the second line-connection information e.g., an NCC identification number
  • the third line-connection information required to utilize an NCC telecommunication network can be automatically delivered. That is, a routing function is achieved.
  • NCC exchange identification numbers e.g., NCC exchange telephone numbers, serving as the third line-connection information
  • a first NCC exchange identification number or a first NCC exchange telephone number is automatically delivered in response to the user terminal device being taken off-hook, so that the routing to a corresponding NCC exchange may be made without aid of ordinary routing by means of a local switchboard, whereby an attempt is made to establish a line connection with a corresponding NCC telecommunication network.
  • a second and later NCC exchange identification numbers or a second and later NCC exchange telephone numbers are sequentially delivered, where required, until a line connection is established.
  • an attempt may be made to establish a line connection in an ascending order of toll.
  • an NCC exchange identification number e.g., an NCC exchange telephone number
  • an NCC exchange telephone number can be automatically delivered from the terminal adapter
  • a line connection between the terminal adapter (i.e., the user terminal device) and an NCC exchange can be established without aid of ordinary routing by means of a local switchboard.
  • the terminal adapter of the present invention may be configured in various manners. The following are concrete examples of configuration of the terminal adapter.
  • the memory device of the terminal adapter stores a phone table in which telephone numbers, for which a public telecommunication network should be utilized, or area codes including a user's local area code, or common carrier identification numbers are listed.
  • the communication control section delivers the called party's telephone number manually input through the user terminal device, without delivering a toll area code or a common carrier identification number, if the manually input called party's telephone number or its several highest-order digits is/are coincide with any one of the telephone numbers, the area codes, and the common carrier identification numbers listed in the phone table.
  • the memory device stores an addition phone table in which a plurality of common carrier identification numbers are listed and a toll table in which pieces of structured toll information in respect of telecommunication networks are associated with network-utilization conditions and common carrier names or common carrier identification numbers or exchange identification numbers.
  • the communication control section responsive to manual input of a called party's telephone number sequentially delivers the common carrier identification numbers, for instance, listed in the toll table in the order determined based on the toll table until a dial tone is returned from an exchange, and delivers the manually input called party's telephone number when a dial tone is returned.
  • the communication control section delivers the manually input called party's telephone number, if no dial tone is returned in response to the delivery of the common carrier identification number lastly determined based on the toll table.
  • an attempt is made to establish a line connection via the lowest-toll telecommunication network, and, if no dial tone is returned, an attempt is made to establish a line connection via the next lower-toll telecommunication network.
  • a line connection via the public telecommunication network can be started, if no dial tone is returned in response to the delivery of the lastly determined common carrier identification number.
  • the memory device stores a routing phone table in which exchange identification numbers, e.g., exchange telephone numbers, are listed.
  • the communication control section responsive to the manual input of a called party's telephone number sequentially delivers the exchange identification numbers in the order listed in the routing phone table until a dial tone, indicating that an exchange is ready for telephone number input, is returned from the exchange, and delivers the manually input called party's telephone number when such a dial tone is returned. Further, the manually input called party' s telephone number is delivered, if no dial tone is returned in response to the delivery of the exchange identification number listed at the end of the routing phone table.
  • an attempt is made to establish a line connection via a telecommunication network to which the highest utilization priority is given by the user. If no dial tone is returned, an attempt is made to establish a line connection via another telecommunication network to which the next higher priority is given. Further, the line connection via the public telecommunication network is initiated when no dial tone is returned even if the sequential delivery of all the exchange identification numbers listed in the routing phone table is made.
  • the routing phone table may be configured such that toll area codes, country codes for international call, or reverse-charge telephone numbers (toll-free dial numbers) are each associated with a required number of exchange identification numbers.
  • the communication control section causes a download memory area of the memory device to store structured toll information delivered from a toll database system or a service center when access is made therefrom with intention of delivering the structured toll information.
  • the control section converts the downloaded structured toll information into a toll-table form, and prepares or renews, with use of the structured toll information converted into the toll-table form, the toll table in which pieces of structured toll information in respect of the telecommunication networks, provided by particular common carriers with which the user made a service contract, are associated with network-utilization conditions and common carrier names or common carrier identification numbers.
  • a toll table proper to each individual user can be prepared and renewed with use of the structured toll information in respect of the particular common carriers.
  • a terminal adapter when access is made from a server provided in the service center to the terminal adapter, with intention of making the initial setting or renewal of the table, an adapter management section of the terminal adapter delivers, through the communication control section, a reply signal indicating that access from the server to the memory device is accepted.
  • the server in the service center serves as the master and the terminal adapter serves as the slave.
  • at least one table in the terminal adapter or an equivalent table is displayed on a display screen of the server. Then, data input into various setting fields in the table displayed on the screen is implemented in sequence by an operator of the service center by manually operating an input device of the server.
  • a computer-readable recording medium which stores programs for permitting a computer to serve as a communication control section of a terminal adapter having the aforementioned first, second and third functions.
  • a computer mounted to a terminal adapter and loaded with the programs recorded in the recording medium serves as a communication control section of the terminal adapter, to selectively perform the direct-dialing function, the auto-dialing function or the routing function.
  • the recording medium provided in an appropriate medium form is set to a CD-ROM drive or other external storage of a personal computer connected to the terminal device, and the programs stored in the recording medium are loaded via the personal computer into a memory device of the computer of the terminal adapter.
  • the programs stored in the recording medium contain a setting/renewal program for performing the initial setting and renewal of pieces of line-connection information or a toll table for the terminal adapter.
  • a setting/renewal program for performing the initial setting and renewal of pieces of line-connection information or a toll table for the terminal adapter.
  • the setting/renewal program is booted up, an initial setting/renewal screen appears on a display screen of the personal computer connected to the terminal adapter.
  • the aforementioned loading work and the initial setting/renewal work may be performed at the user's home by a staff member of the service center or other professional personnel or the user.
  • the computer of the terminal adapter has a function of searching for pieces of line-connection information and toll information to be referred to in the process of the initial setting/renewal from a database stored in the recording medium or from a database provided by the service center or the like and connected to the computer through a telecommunication network.
  • the setting/renewal program stored in the recording medium is prepared such that, after booted up, it performs procedures for calling up the service center and for asking the service center to carry out the initial setting/renewal work.
  • the setting/renewal program may be prepared such that the user can specify and contact his or her acquaintance as a worker who will carry out the setting/renewal work through a telecommunication network.
  • the setting/renewal program contains a program routine for preventing a third party from conducting unauthorized setting/renewal processing.
  • the computer of the terminal adapter serves as the communication control section of the terminal adapter.
  • the computer of the terminal adapter serves as a line-connection engine for performing communication control based on the initially set or renewed line-connection information.
  • a terminal adapter management system which comprises a plurality of terminal adapters and a service center that are adapted to be connected to a telecommunication network.
  • Each of the terminal adapters selectively performs an arbitrary one of the aforesaid first, second and third functions to thereby read out the first, second or third line-connection information.
  • the service center is arranged to perform the initial setting and renewal of the first, second and third line-connection information and the toll table stored in a memory device of each terminal adapter through the telecommunication network.
  • Each of the terminal adapters which constitute the terminal adapter management system can selectively perform an arbitrary one of the direct-dialing, auto-dialing and routing functions, whereby each terminal adapter is easily adapted to the network utilization form of each individual user.
  • each individual user especially a user who made service contract with a large number of NCCs, cannot properly carry out work for the initial setting and renewal of the first, second and third line-connection information and the toll table information to be stored in the memory device of the terminal adapter.
  • each individual user generally makes an inquiry to a manufacturer or a distributor of the terminal adapter. This is not only burdensome for the user but also becomes burden for the manufacturer and the distributor to answer such a customer inquiry.
  • the initial setting and renewal of the line-connection information and the toll table in the terminal adapter of each individual user can be carried out by the service center through the telecommunication network, whereby burdensome work on both the user and the manufacturer or distributor associated with the setting/renewal of the line-connection information and the like can be reduced.
  • the service center carries out the setting/renewal of the line-connection information and the toll table for each terminal adapter in accordance with that utilization form of the user terminal device or the terminal adapter which was notified in advance by each individual user to the service center, such setting/renewal is performed with approval of the user, and the line-connection information and the toll table set in the terminal adapter are adapted to the utilization form of the terminal adapter by the user. Besides, an unauthorized setting/renewal by a third party can be prevented.
  • the setting/renewal of the line-connection information and the toll table may be performed by an operator of the service center, while the operator makes a conversation with each individual user through a telecommunication network to confirm how the user wishes to utilize the terminal adapter.
  • a terminal adapter 10 constituting part of the terminal adapter management system of the present embodiment has a function of a digital service unit DSU and is adapted to be connected to a subscriber line SL, which is connected through a local switch LS to a public telecommunication network 1, such as an integrated services digital network ISDN, provided by a telecommunication enterprise, i.e., a common carrier (hereinafter referred to as "CC").
  • the local switch LS is permitted to be connected to an arbitrary one of telecommunication networks (hereinafter referred to as "NCC networks") 2A-2N respectively provided by new common carriers (hereinafter referred to as "NCCs”) through a toll switch TS and an inter-gateway switch IGS.
  • NCC networks telecommunication networks
  • NCCs new common carriers
  • TLS and POI denote a toll local switch and a point of interface, respectively.
  • a large number of subscribers' terminal devices are connected through a number of switchboards or exchanges to the public telecommunication network 1.
  • These terminal devices include a number of terminal adapters (one of which is shown by reference numeral 10A) of the present embodiment.
  • at least one of manufacturers and distributors of the terminal adapters has a service center 3 connected to the public telecommunication network 1.
  • Reference numerals 3A, 3B and 3C denote a digital service unit, a private branch exchange, and a computer (server) serving as a terminal device, respectively.
  • the service center 3 is a primary element of the terminal adapter management system.
  • toll database systems (one of which is shown by reference numeral 4), each storing therein structured toll information regarding a corresponding one of the public telecommunication network 1 and the NCC networks 2A-2N, are connected to primary exchanges respectively provided in the public telecommunication network and the NCC networks.
  • the terminal adapter 10 of the present embodiment includes a connection port 11 adapted to be connected to a subscriber line SL, a DSU section 12 connected to the connection port 11 and having a function of a DSU (digital service unit), and a first interface section 13 connected to the DSU section 12 and adapted to implement synchronization and data speed conversion during the telecommunication.
  • the first interface section 13 is connected through a selector switch 14 and a codec 15 to first and second analog ports 21, 22 each of which is adapted to be connected to a telephone 20.
  • the first interface section 13 is connected through the selector switch 14 and a second interface section 16 to a digital port 23 to which a digital terminal device is connectable and to a serial port 24 to which a personal computer or the like is connectable.
  • the terminal adapter 10 accommodates therein a transmit/receive control section 17 connected to the first and second interface sections 13, 16 and the selector switch 14.
  • the control section 17 serves to control transmission and reception between a telephone 20 or a digital terminal device connected to the terminal adapter 10 and a terminal device (the terminal adapter 10A, for instance) line-connected to the terminal adapter 10 via networks concerned.
  • the terminal adapter 10 accommodates therein an adapter management section 18 connected to the selector switch 14, and a memory device 19 accessible from both the transmit/receive control section 17 and the adapter management section 18.
  • these two sections 17 and 18 will be sometimes collectively referred to as a communication control section typically comprised of a computer that is adapted to execute programs stored in the memory 19 to thereby selectively achieve an arbitrary one of direct-dialing, auto-dialing, and priority connection functions, as mentioned below.
  • the terminal adapter 10 of the present embodiment has a function of permitting each of telephones 20 respectively connected to the first and second analog ports 21, 22 to be used in a selected one of three modes, i.e., a "direct phone mode,” "addition phone mode,” or “routing phone mode.”
  • an operation mode table (shown in Fig. 3) for storing a selected operation mode of each telephone 20 is provided in the memory device 19 of the terminal adapter 10.
  • the terminal adapter 10 is provided with operation-mode selection switches (not shown) connected to the adapter management section 18 and manually operable by the user.
  • the transmit/receive control section 17 of the terminal adapter 10 delivers a called party's telephone number (first line-connection information) set in advance in a direct table (Fig. 5) in the memory device 19 when the telephone 20 connected to the first or second analog port 21 or 22 is taken off-hook.
  • a direct table Fig. 5
  • the direct phone mode achieves a direct-dialing function (a first function) for calling up the same called party's telephone number for every call.
  • a user telephone set to achieve the direct-dialing function is utilized as a telephone for emergency contact with a caregiving center or the like, a telephone located near ATMs in a bank for permitting an ATM user to contact with bank personnel upon failure of an ATM, or a telephone to be connected to an access point of an internet provider, for instance.
  • the transmit/receive control section 17 of the terminal adapter 10 causes a buffer memory (not shown) accommodated therein to store a telephone number that is manually input, e.g., through a dial button operation on the telephone 20, and sends, if necessary and prior to the delivery of the manually input telephone number, a number (second line-connection information) stored in advance in an addition table (Fig. 4) provided in the memory device 19 while referring to a phone table (Fig. 6) in the memory device.
  • a buffer memory not shown
  • a number (second line-connection information) stored in advance in an addition table (Fig. 4) provided in the memory device 19 while referring to a phone table (Fig. 6) in the memory device.
  • This makes it possible to relieve the user of the labor to input a telephone number upon making a line connection for toll or overseas telecommunication or for telecommunication via an NCC network.
  • the addition phone mode achieves an auto-dialing function (a second function) for delivering an NCC identification number prior to the delivery of a
  • the terminal adapter 10 has a function of automatically selecting one of telecommunication networks, respectively provided by a plurality NCCs with which a user made a service contract, so that telecommunication costs, varying in dependence on time zone and communication district of a called party, may be lowest.
  • LCR least cost route
  • a toll table (Fig. 9) for storing pieces of structured toll information in respect of the contracted NCC networks, as a toll database proper to an individual user, is provided.
  • second line-connection information is determined by the LCR selecting function, and an NCC identification number associated with an NCC telecommunication network usable with the least cost can be automatically delivered.
  • Types of classifications and a maximum possible number of fields for indication of NCC identification numbers in the toll table are not limited to those shown in Fig. 9.
  • the transmit/receive control section 17 of the terminal adapter 10 sequentially delivers at predetermined time intervals, in response to manual input of a telephone number, a plurality of telephone numbers (third line-connection information) set in advance in a predetermined order in a routing table (Fig. 7) of the memory device 19, while referring to the phone table, until a line connection is approved.
  • Telephone numbers delivered from the transmit/receive control section 17 typically include an NCC exchange telephone number.
  • the routing phone mode achieves a function of priority connection (a third function) for performing routing to an NCC exchange without the need of ordinary routing by mean of a local switchboard.
  • the routing table is comprised of a table that is five pages in total. For instance, two hundred retrieval numbers may be set in each page of the table, and ten NCC exchange telephone numbers, at the most, may be registered for every retrieval number. Each retrieval number may be a toll area code for national call, a country code for international cal, or a toll-free dial number, for instance.
  • the terminal adapter 10 delivers, if necessary, supplementary information while referring to a supplementary information table (Fig. 8).
  • the attainment of the local area code implemented by the terminal adapter 10 will be explained, the local area code being utilized upon delivery of telephone number.
  • the transmit/receive control section 17 of the terminal adapter 10 boots up a startup program (Fig. 10) accommodated therein, detects the local area code from the user's telephone number delivered from the local switchboard LS, and marks a corresponding one of check boxes on a telephone number list of a phone table (Fig. 6).
  • the transmit/receive control section 17 fetches the user's telephone number ("0473585886" for the case shown in Fig. 11) delivered from the local switchboard LS when the telephone 20 is taken off-hook (step S11).
  • the control section 17 sequentially determines whether or not the first and second highest-order digits of each of the toll area codes listed in the nationwide toll area code table are consistent with those of the user's telephone number, and retains the toll area codes each including two highest-order digits consistent with those of the user's telephone number (step S12).
  • step S13 a determination is made as to whether or not a plurality of toll area codes are retained. If the result of this determination is affirmative, whether or not the third digit of each of the retained toll area codes is consistent with that of the user's telephone number is determined, and retains the codes each including the third digit consistent with that of the user's telephone number (step S14).
  • step S15 a determination is made as to whether or not a plurality of toll area codes are retained (step S15). If the result of this determination is affirmative, whether or not the fourth digit of each of the retained toll area codes is consistent with that of the user's telephone number is determined, and retains such codes (step S16).
  • step S17 whether or not a plurality of toll area codes are retained is determined.
  • the toll area codes are comprised of four digits at the greatest.
  • the toll area code consisting of the three highest-order digits which are consistent with those of the user's telephone number is detected (step S18).
  • step S19 a single toll area code is detected, so that such a toll area code is detected as the user's local area code and a check box corresponding thereto in the phone table is marked (step S19).
  • the startup program is completed.
  • the toll area code "047" is detected as the user's local area code, and the number "047" in the phone table of Fig. 6 is marked.
  • the transmit/receive control section 17 of the terminal adapter 10 has an automatic transmission function of calling up a service center 3 when a predetermined period of time has elapsed from when the terminal adapter 10 was installed in the user's home, and notifies the service center 3 of terminal-adapter management information, e.g., the product number of the terminal adapter and the user's telephone number.
  • the service center 3 performs user's registration for the terminal adapter 10.
  • a terminal adapter 10 purchased by the user is installed at his or her home (steps S101 and S102). That is, the terminal adapter 10 is connected to one or two telephones 20 and the subscriber line SL, and the power of the terminal adapter 10 is turned on. In response to this, a timer (not shown) accommodated in the adapter management section 18 of the adapter is subject to initial setting. If the terminal adapter 10 is provided with mode selection switches, one or both of these switches are set by the user to select the operation mode of one or two telephones 20, connected to the first and second analog ports 21, 22 of the terminal adapter 10, among the direct phone mode, the addition phone mode and the routing phone mode.
  • an automatic transmission/notification function of the terminal adapter 10 is triggered to call up the service center 3 and notify the service center 3 of the product number and one or two user's telephone numbers (hereinafter referred to as the user's telephone number) associated with the terminal adapter (step S104).
  • This automatic transmission/notification is performed under a condition that the terminal adapter 10 is not used by the user for telecommunication.
  • a toll-free line is employed for the automatic transmission/notification. If a line connection to the service center 3 via such a toll-free line cannot be established, redialing is repeated at intervals of an appropriate waiting time until a line connection is established.
  • the service center 3 After obtaining the production number and the user's telephone number associated with the terminal adapter 10 (step S105), the service center 3 refers to the user's telephone number and accesses a telephone directory of a telecommunication enterprise that manages the subscriber line SL5 to which the terminal adapter 10 is connected (step S106). Whereupon the service center 3 searches the telephone directory to obtain user information such as the name and address of the telephone subscriber corresponding to the user's telephone number (step S107). If such user information is not open to the public under the contract between the telecommunication enterprise and the telephone subscriber, no user information is available from the telephone directory.
  • the service center 3 determines whether or not the location of the user is confirmed (step S108). If the name and address of the user have been obtained by the search of the telephone directory, it is determined that the location of the user is confirmed. In this case, the service center registers the subscriber information (user information) including the name and address of the user in a user management device such as a host computer of the service center, together with the production number of the terminal adapter and the user's telephone number (step S109). Whereupon, management services for the terminal adapter 10 are carried out (step S110).
  • step S108 if it is determined in step S108 that the location of the user is not confirmed, an operator of the service center 3 dials the user's telephone number notified from the terminal adapter 10 (step S111). The operator explains the person or the user who answers the phone that the service center wishes to conduct formalities required to guarantee the terminal adapter 10, and obtains the user information, including the name and address of the user, directly from him or her with his or her approval (step S112).
  • the service center 3 registers the user information in the user management device together with the production number and the user's telephone number (step S109), and carries out terminal adapter management services (step S110).
  • the terminal-adapter management services include making the initial setting and renewal of first, second and third line-connection information suited to the usage form of the terminal adapter 10 by each individual user.
  • the initial setting and renewal of the line-connection information are conducted based on information notified by the user.
  • the operator of the service center 3 may input control/setting commands for the initial setting or renewal of the line-connection information to the terminal adapter 10 through a data channel of an ISDN, while making a conversation with the user via a voice channel of the ISDN.
  • the transmit/receive control section 17 serving as a called party's device detects a caller's telephone number transmitted through a D channel of the ISDN and a supplementary signal transmitted, if necessary, together with the caller's telephone number. If it is determined based on the caller's telephone number and the supplementary signal that the service center 3 makes a call with the intention of implementing the initial setting or renewal of various tables in the memory device 19 of the terminal adapter 10, the transmit/receive control section 17 connects the selector switch 14 with the adapter management section 18.
  • the adapter management section 18 delivers a reply signal, indicating that access to the memory device 19 by the service center 3 is accepted, to the service center 3 through the transmit/receive control section 17.
  • the server 3C in the service center 3 serves as the master and the terminal adapter 10 serves as the slave, so that the service center 3 may be enabled to implement the initial setting or renewal of various tables in the memory device 19 as will be described hereinbelow.
  • the user To enable the service center 3 to conduct the initial setting or renewal of the line-connection information, the user notifies the service center 3 of the following particulars through the mail or by telephone.
  • the service center 3 implements, in term of remote control access, the initial setting or renewal of various tables in the terminal adapter 10 in accordance with the below-mentioned procedures.
  • the server 3C of the service center 3 serves as the master, whereas the terminal adapter 10 serves as the slave.
  • the server 3C is connected to the terminal adapter 10 through a B channel of the ISDN.
  • data input into various setting fields provided in a table displayed on the screen is implemented in sequence by the operator by manually operating the input device of the server 3C serving as the master, as explained in the above.
  • Each time individual data is manually input such data is written into a corresponding field in the table in the terminal adapter 10 serving as the slave.
  • the same data is written into the same field in an equivalent table provided in a memory device of the server 3C.
  • the writing of table data into the terminal adapter and the server is implemented in a mirroring fashion.
  • the service center 3 has a function of remotely notifying the terminal adapter 10 of a new telephone number if the telephone number of any one of toll database systems 4 or the like is changed. This function is useful especially for a case where area codes are changed nationwide.
  • the transmit/receive control section 17 of the terminal adapter 10 determines the operation mode of the telephone 20 in accordance with the operation mode table shown in Fig. 3.
  • the transmit/receive control section 17 reads out, as shown in Fig. 12, the called party's telephone number from the direct table of Fig. 5 and temporarily stores the same in a buffer memory (step S21). If an NCC exchange telephone number is added to the called party' s telephone number, the NCC exchange telephone number is first delivered (steps S22 and S23). As a result, a telecommunication path, through which the terminal adapter 10 is connected to an NCC exchange corresponding to the NCC exchange telephone number, is promptly established in the public telecommunication network 1. Then, the user's telephone number is delivered from the relevant CC exchange to the NCC exchange.
  • the NCC exchange receives the user's telephone number as a caller ID (supplementary information) and determines whether a line connection between the telephone 20 and the NCC telecommunication network is to be accepted. If such a line connection is acceptable, the NCC exchange delivers a dial tone indicating that it waits for input of a called party's telephone number.
  • a caller ID supplementary information
  • the transmit/receive control section 17 delivers the called party's telephone number temporarily stored in the buffer memory (steps S24 and S25), whereby the telephone number delivery process at the direct phone mode is completed. Communication procedures after the telephone number delivery are the same as ordinary procedures, so that explanations thereof are omitted herein (this applies to the following operation modes).
  • a line connection is rejected by the NCC exchange from which a disconnection tone is returned, if the user's telephone number delivered from the CC exchange is not coincide with any one of a large number of user's telephone numbers registered as caller IDs in the NCC exchange.
  • a line connection is rejected when the delivered user's telephone numbers are different from each other or when the same user's telephone number delivered from them is not registered in the NCC exchange.
  • the transmit/receive control section 17 of the terminal adapter 10 waits for, as shown in Fig. 13, the completion of a dial button operation on the telephone 20 to input a called party's telephone number.
  • the telephone number input is completed (step S31) determinations are made as to whether the highest-order digit of the telephone number is not equal to "0," and whether the telephone number or its several highest-order digits (four digits, for instance) is/are not listed or is/are marked in the phone table of Fig. 6 (steps S32 through S34).
  • the called party's telephone number which is input from the telephone 20 is delivered (step S36).
  • a line connection to a called party's telephone is made through the public telecommunication network 1.
  • a corresponding number listed in the phone table is marked, to thereby prevent an undesired operation of delivering such an NCC identification number twice which would be otherwise caused when the user inputs a called party's telephone number including an NCC identification number, which is equal to any one of the number set in the addition table.
  • NCC exchange telephone number corresponds to an NCC exchange telephone number
  • a called party's telephone number which is input from the telephone 20
  • a dial tone is returned from the NCC exchange, as in the case of the direct phone mode shown in Fig. 12.
  • a called party's telephone number is delivered before a predetermined period of time elapses from the time when the called party's telephone number is manually input, whereby the user is prevented from making an unnecessary manual operation on the telephone 20 for re-inputting the called party's telephone number.
  • the number, e.g., NCC identification number, to be delivered in the addition phone mode prior to the delivery of a called party's telephone number is stored in the addition table.
  • the transmit/receive control section 17 of the terminal adapter 10 When it is determined that access is made from a toll database system 4 of the CC or any one of the NCCs to the terminal adapter 10, with intention of delivering structured toll information, the transmit/receive control section 17 of the terminal adapter 10 operates to connect the selector switch 14 with the adapter management section 18.
  • the service center 3 may offer services for delivering structured toll information for the CC and the NCCs, with which each individual user made a service contract, to the terminal adapter for each user, among numerous pieces of structured toll information as to the CC and a large number of NCCs.
  • the transmit/receive control section 17 may respond to access from the service center 3.
  • the adapter management section 18 On the basis of the structured toll information delivered from the service center 3 or the toll database system 4, the adapter management section 18 newly prepares at least part of a toll table shown in Fig. 9 or renews at least part of the prepared toll table, as will be explained later.
  • Fig. 16 shows procedures of preparation and renewal of the toll table implemented by the adapter management section 18.
  • the adapter management section 18 makes the initial setting of a timer (not shown) accommodated therein (step S61) when the terminal adapter 10 is installed in the user's home.
  • the time counted by the timer is utilized for the determination of present date and time which are one of network-utilization conditions to be checked at the time of selecting an optimum network.
  • the adapter management section 18 of the terminal adapter 10 installed in the user's home always monitors, through the transmit/receive control section 17, whether or not access to the terminal adapter is made (step S62).
  • step S63 If it is determined that access to the terminal adapter is made, whether or not the access is acceptable is determined based on corresponding ones of a caller's telephone number, a supplementary signal and a carrier identification number that are detected by the transmit/receive control section 17 (step S63).
  • the adapter management section 18 determines whether the access is made from the service center 3 or any one of the toll database systems 4 of the CC or any one of the NCCs with which the user made a service contract, with the intention of downloading of structured toll information to the terminal adapter 10. If the result of the determination is affirmative, the adapter management section 18 delivers a reply signal, indicating that the access to the terminal adapter 10 is accepted, to the calling party through the transmit/receipt control section 17, thereby permitting the service center 3 or the toll database system 4 to make the downloading of the structured toll information to the terminal adapter 10.
  • the adapter management section 18 stores the toll information transmitted from the service center 3 or the toll database system 4 in a download area of the memory device 19 (step S64).
  • the toll information downloaded from the service center 3 or the toll database system 4 is written in the download area of the memory device 19 together with the relevant NCC identification number.
  • the terminal adapter 10 may have a function of limiting time zones during which the downloading of toll information is permitted to late-night where the frequency of utilization of telephone is low.
  • the adapter management section 18 converts the downloaded toll information into the form of the toll table exemplarily shown in Fig. 9 (step S65). With use of the toll information converted into the toll-table form, the adapter management section 18 prepares or renews the toll table in which pieces of structured toll information for the common carriers are associated with common carrier names or common carrier identification numbers or exchange identification numbers (e.g., exchange telephone numbers) and network-using conditions (step S66).
  • common carrier names or common carrier identification numbers or exchange identification numbers e.g., exchange telephone numbers
  • the downloaded and converted toll information regarding the CC or any one of the NCCs is compared with the pieces of toll information regarding the CC and the NCCs set in the toll table (Fig. 9) stored in the memory device 19, thereby obtaining a consolidated and rearranged toll information regarding the common carriers. That is, as exemplarily shown as the toll table in Fig. 9, tolls for the common carriers' networks are associated with these common carriers' networks and the network-using conditions.
  • the network-using conditions are classified in term of time classification such as days of a week and time zones and types of telecommunication such as local, toll, overseas and internet services.
  • the downloading of the toll information regarding the CC or any one of the NCCs is implemented on the initiative of the common carrier to encourage users to utilize the common carrier's network, immediately after each common carrier has revised the schedule of charge or has started new services for users. If there is a restriction such that the billing process for charging tolls for services rendered by the common carriers should be made in accordance with the latest toll information registered in the toll table in the memory device 19, unnecessary troubles regarding fee charges from the common carriers can be avoided.
  • the transmit/receive control section 17 of the terminal adapter 10 selects a telecommunication network, which is useable at the lowest cost, from the toll table shown in Fig. 9 in accordance with the toll area code or the country code contained in the called party's telephone number manually input through the telephone 20 (step S35A of Fig. 15), and determines an NCC identification number corresponding to the telecommunication network selected at step S35A.
  • the selection of the lowest-cost telecommunication network and the determination of the NCC identification number are carried out simultaneously.
  • This NCC identification number is written in the addition table and at the same time delivered to the subscriber line (step S35B). Whereupon, it is determined whether or not a dial tone indicative of a standby state for input is returned from an exchange (step S35C). If a dial tone is returned, the control flow advances to step S36 of Fig. 13 where the telephone number which is input through the telephone 20 is delivered. That is, after the NCC exchange telephone number is delivered, the called party's telephone number (i.e., the telephone number input through the telephone 20) is delivered in response to a dial tone returned from the NCC exchange.
  • step S35C If it is determined at step S35C that no dial tone is returned from the exchange, an attempt is made to determine, from the toll table, an NCC identification number corresponding to a telecommunication network which is the next lowest in communication cost (step S35D), and determines whether or not such an NCC identification number is determined (step S35E). If an NCC identification number is determined, the flow advances to step S35B in which the NCC identification number is delivered. On the other hand, if no NCC identification number is determined, the flow advances to step S36 of Fig. 13, in which a called party's telephone number is delivered. In this case, a line connection to a called party's telephone is established through the public telecommunication network.
  • the transmit/receive control section 17 of the terminal adapter 10 implements, as shown in Fig. 14, steps S41 through S44 respectively corresponding to steps S31 through S34 shown in Fig. 13, and delivers a called party's telephone number which is input through the telephone 20, if the highest-order digit of the telephone number is not "0," or if the telephone number or several highest-order digits (four digits, for instance) thereof is/are not listed or is/are marked in the phone table shown in Fig. 6 (step S45). Whereupon, the execution of this program is finished. In this case, a line connection to the called party's telephone is established through the public telecommunication network 1.
  • a variable N in this program is set to a value of 1 (step S46). Then, a required page of the routing phone table is selected in accordance with a retrieval number which is a toll area code or a country code contained in the called party's telephone number, and the N-th number (here, the first number), among a group of NCC exchange telephone numbers corresponding to the retrieval number in the selected page of the routing phone table, is delivered (step S47).
  • the toll area code is automatically delivered in the step S47 and then a called party's telephone number is delivered.
  • the number listed in the routing phone table is an NCC exchange telephone number
  • an NCC exchange telephone number is first delivered as in the case of the direct phone mode shown in Fig. 12, and then the called party's telephone number (which is input through the telephone 20) is delivered when a dial tone is returned from the NCC exchange.
  • step S48 If it is determined at step S48 that no dial tone is returned form the exchange, the variable N is incremented by a value of 1, and whether the renewed variable N is greater than a value of 10 is determined (steps S49 and S50). If the renewed variable N is equal to or less than 10, the program returns to the step S47 in which the next number listed in the routing phone table is delivered. Subsequently, the processing explained in the above is implemented. If the renewed variable N is greater than a value of 10, the telephone number input through the telephone 20 is delivered (step S45), so that a line connection via the public network 1 is started.
  • variable N may be reset to a value of 1 when it is determined that the renewed variable N exceeds a value of 10 unless such a determination has been made a predetermined number of times, so that the numbers listed in the routing phone table may be delivered the predetermined number of times.
  • NCC exchange telephone numbers are sequentially delivered in an order of utilization priority, and, if a line connection with any one of NCC exchanges is established, the called party's telephone number is delivered to the NCC exchange.
  • a telecommunication line to the called party's telephone is established via the NCC network.
  • the transmit/receive control section 17 of the terminal adapter 10 causes a buffer memory to store the called party's telephone number, and searches for the routing table with use of the toll area code [03] contained in the called party's telephone number, as a retrieval number. Then, a first NCC exchange telephone number read out from the routing table is delivered. As a result, the NCC exchange TLS is called. That is, routing by means of the terminal adapter 10 is implemented.
  • the NCC exchange TLS If a line connection is established between the terminal adapter 10 and the NCC exchange TLS, the NCC exchange TLS returns a dial tone, indicating that it awaits for dialing, to the terminal adapter 10. In response to this, the transmit/receive control section 17 delivers the called party's telephone number [03-5957-3001] stored in the buffer memory, so that a called party's telephone specified by the called party's telephone number is called.
  • a line connection is carried out by means of the routing function of the terminal adapter 10 in the above manner.
  • a single number is set in the addition phone table of Fig. 4 and in the direct phone table of Fig. 5 for each telephone.
  • a required number of telephone numbers may be set in the addition phone table and/or the direct phone table.
  • a plurality of called party's telephone numbers may be set in the direct phone table in an order of utilization priority, so that a second called party's telephone number may be delivered if a line connection cannot be established for the reason that the line is busy or the like when a first called party's telephone number is delivered.
  • a plurality of contacts can be called in sequence.
  • pieces of supplementary information are listed in correspondence with NCC identification numbers in a supplementary information table of Fig. 8.
  • pieces of supplementary information may be listed so as to correspond to NCC names.
  • the memory device 19 is provided with a table in which the NCC names are listed to correspond to NCC identification numbers.
  • the transmit/receive control section refers to the table to find an NCC identification number corresponding to an NCC name and then finds supplementary information corresponding to the NCC identification number.
  • the list items and the number of columns for listing NCC identification numbers shown in various tables of Figs. 3-9 are intended to illustrative purposes only and may be modified in various ways.
  • the toll table shown in Fig. 9 is divided in accordance with utilization conditions including time classifications in term of date of a week and types of telecommunication services, the toll table may be classified in accordance with other utilization conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Meter Arrangements (AREA)
  • Telephone Function (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
EP00124320A 2000-04-06 2000-11-16 Terminal adapter, computer-readable recording medium, and terminal adapter management system Expired - Lifetime EP1154620B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000104948A JP3674836B2 (ja) 2000-04-06 2000-04-06 端末アダプタおよび端末アダプタ管理システム
JP2000104948 2000-04-06

Publications (2)

Publication Number Publication Date
EP1154620A1 EP1154620A1 (en) 2001-11-14
EP1154620B1 true EP1154620B1 (en) 2005-02-02

Family

ID=18618403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00124320A Expired - Lifetime EP1154620B1 (en) 2000-04-06 2000-11-16 Terminal adapter, computer-readable recording medium, and terminal adapter management system

Country Status (7)

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EP (1) EP1154620B1 (ko)
JP (1) JP3674836B2 (ko)
KR (1) KR100676657B1 (ko)
CN (1) CN1316846A (ko)
AT (1) ATE288653T1 (ko)
CA (1) CA2326787A1 (ko)
DE (1) DE60017874D1 (ko)

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Publication number Priority date Publication date Assignee Title
KR20010067886A (ko) * 2001-04-04 2001-07-13 이동환 후크(ｈｏｏｋ)상태를 감지하고 선/후불카드의 입력번호를자동 송출하는 ＡＣＲ 단말기
KR100428481B1 (ko) * 2002-02-21 2004-04-28 (주)씨앤에스 테크놀로지 액정표시장치가 장착된 자동 접속 다이얼 전화기의 선로설정 방법
JP2006311177A (ja) * 2005-04-28 2006-11-09 Nec Corp ネットワーク装置の設定及びファームウェアの更新方法、ネットワーク装置並びにコンピュータプログラム
KR100701347B1 (ko) * 2006-06-22 2007-03-29 (주) 우리텔 유선전화망에 자동으로 접속시키는 통신모듈이 내장된휴대전화
JP4992541B2 (ja) * 2007-05-15 2012-08-08 株式会社Ｊｖｃケンウッド ハンズフリー通話装置、ハンズフリー通話システム、およびハンズフリー通話装置における国際電話の発信方法
CN103038723B (zh) * 2010-04-01 2018-04-17 汤姆森特许公司 大量通用数字终端适配器控制图形用户界面
KR102413502B1 (ko) * 2019-09-30 2022-06-28 최수아 단말기 어댑터를 포함하는 재난 감지 시스템

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Publication number Priority date Publication date Assignee Title
JPH04145750A (ja) * 1990-10-06 1992-05-19 Canon Inc 通信端末アダプタ
CA2111634C (en) * 1992-12-17 1999-02-16 Toshio Nishida Private branch exchange
JP2836573B2 (ja) * 1996-04-12 1998-12-14 日本電気株式会社 Ｌｃｒ収容ターミナルアダプタ
IL120045A0 (en) * 1997-01-21 1997-04-15 Call Manage Ltd Telecommunications call management system
US6167130A (en) * 1997-10-31 2000-12-26 Rosen; Howard B. Conditional autodialer

Also Published As

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JP2001292246A (ja) 2001-10-19
JP3674836B2 (ja) 2005-07-27
KR100676657B1 (ko) 2007-01-31
DE60017874D1 (de) 2005-03-10
ATE288653T1 (de) 2005-02-15
KR20010096502A (ko) 2001-11-07
CN1316846A (zh) 2001-10-10
CA2326787A1 (en) 2001-10-06
EP1154620A1 (en) 2001-11-14

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